I watercooled my pc about 4 months ago and today I was planning on adding a couple of bits, a n/b waterblock and a bayres.
My current setup has an all in one sealed pump/res box which is a pain to fill, but I haven't touched it since I installed it. Its a rather basic but efficent setup atm:
Pump/res -> rad -> CPU Block -> Pump/res
So the questions are:
1) Do I reallly need a sperate res as the main reason I was going to add one was to aid re-filling or topping it up, which i haven't done in about 4 months.
2) Should I have been topping it more frequently, if so how often?
edit: When do you know its time to top up the water level?